As the Toronto Sun reports (via NME), last week, Sullivan pleaded guilty to assault causing bodily harm. He is set to be sentenced on February 5, 2010.

The Sun reports that at the Ontario Court of Justice on Thursday, Crown attorney Ruth Neilson read a statement of facts to the judge, saying, "Sullivan managed to make his way up to the main stage area, run past the electrical cords set up along the stage, pass the drum kit and lunge toward Noel Gallagher, shoving him violently from behind with great force ... Sullivan almost made it to Liam Gallagher, but was tackled by security and was taken to the ground on stage ... He was held backstage for police to attend. Police report Sullivan was resisting, struggling and screaming as he was arrested. Officers tried to calm him down."

Shockingly enough, Sullivan was intoxicated when he jumped onstage, and he doesn't remember anything beyond trying to jump over a fence. Anyone who watched the YouTube clip of Sullivan shoving Gallagher down probably could've told you that the dude was pretty drunk.